[#47790] [ruby-trunk - Bug #7097][Open] Thread locals don't work inside Enumerator — "tenderlovemaking (Aaron Patterson)" <aaron@...>

32 messages 2012/10/01
[#47791] [ruby-trunk - Bug #7097][Assigned] Thread locals don't work inside Enumerator — "kosaki (Motohiro KOSAKI)" <kosaki.motohiro@...> 2012/10/01

[#47792] Re: [ruby-trunk - Bug #7097][Assigned] Thread locals don't work inside Enumerator — Aaron Patterson <tenderlove@...> 2012/10/01

On Tue, Oct 02, 2012 at 03:05:17AM +0900, kosaki (Motohiro KOSAKI) wrote:

[#47798] Re: [ruby-trunk - Bug #7097][Assigned] Thread locals don't work inside Enumerator — SASADA Koichi <ko1@...> 2012/10/01

(2012/10/02 3:12), Aaron Patterson wrote:

[#47800] Re: [ruby-trunk - Bug #7097][Assigned] Thread locals don't work inside Enumerator — SASADA Koichi <ko1@...> 2012/10/01

(2012/10/02 8:22), SASADA Koichi wrote:

[#47832] [ruby-trunk - Feature #7106][Open] FileUtils.touch should allow touching the symlink itself rather than the file the link points to — "cirrusthinking (Alessandro Diaferia)" <alessandro@...>

18 messages 2012/10/04

[#47847] [ruby-trunk - Bug #7110][Open] CGI: Add support for HTML5 <header> tag — "stomar (Marcus Stollsteimer)" <redmine@...>

16 messages 2012/10/05

[#47870] [ruby-trunk - Bug #7123][Open] Segmentation fault in ruby 1.9.3-p194 — "mscottford (M. Scott Ford)" <scott@...>

13 messages 2012/10/09

[#47880] [ruby-trunk - Bug #7134][Open] Signal handling bug in Mac OS X — "auastro (Andy Kitchen)" <kitchen.andy+rubybug@...>

17 messages 2012/10/10

[#47881] [ruby-trunk - Bug #7135][Open] GC bug in Ruby 1.9.3-p194? — "alexdowad (Alex Dowad)" <alexinbeijing@...>

21 messages 2012/10/10

[#47887] [ruby-trunk - Bug #7137][Open] Date.parse overly lenient when attempting to parse Monday? — "garysweaver (Gary Weaver)" <garysweaver@...>

12 messages 2012/10/10

[#47930] [ruby-trunk - Feature #7148][Open] Improved Tempfile w/o DelegateClass — "Glass_saga (Masaki Matsushita)" <glass.saga@...>

14 messages 2012/10/12

[#47970] [ruby-trunk - Bug #7158][Open] require is slow in its bookkeeping; can make Rails startup 2.2x faster — "gregprice (Greg Price)" <price@...>

30 messages 2012/10/14

[#48027] [Backport93 - Backport #7172][Open] [[Ruby 1.9:]] fix rbconfig for --enable-load-relative (v2) — "mpapis (Michal Papis)" <mpapis@...>

13 messages 2012/10/16

[#48053] [ruby-trunk - Bug #7180][Open] set_trace_func with error in proc block locks up Ruby with 100% cpu usage and no way to exit without killing proc — "garysweaver (Gary Weaver)" <garysweaver@...>

8 messages 2012/10/17

[#48072] [ruby-trunk - Bug #7184][Open] --disable-gems commandline parameter does not show up with ruby -h — "steenslag (siep korteling)" <s.korteling@...>

10 messages 2012/10/18

[#48130] [ruby-trunk - Bug #7200][Open] Setting external encoding with BOM| — "brixen (Brian Ford)" <brixen@...>

14 messages 2012/10/21

[#48191] [ANN] 2.0.0 feature freeze — Yusuke Endoh <mame@...>

Japanese later; 日本語は後で

37 messages 2012/10/24
[#48696] Re: [ANN] 2.0.0 feature freeze — SASADA Koichi <ko1@...> 2012/11/01

(2012/10/24 5:39), Yusuke Endoh wrote:

[#48260] [ruby-trunk - Bug #7214][Open] Ruby 2.0 breaks support for some debugging tools — "banister (john mair)" <jrmair@...>

22 messages 2012/10/25

[#48315] [ruby-trunk - Bug #7220][Open] StringIO#initialize_copy causes aliasing between the objects — "brixen (Brian Ford)" <brixen@...>

13 messages 2012/10/26

[#48413] [ruby-trunk - Bug #7221][Open] Unable to compile kgio under 1.9.3 with error: ruby-1.9.3-<plvl>/lib/ruby/1.9.1/mkmf.rb:597:in `Integer': can't convert nil into Integer (TypeError) — "davidderyldowney (David Deryl Downey)" <me@...>

9 messages 2012/10/27

[#48549] [ruby-trunk - Feature #7240][Open] Inheritable #included/#extended Hooks For Modules — "apotonick (Nick Sutterer)" <apotonick@...>

14 messages 2012/10/29

[#48551] [ruby-trunk - Feature #7241][Open] Enumerable#to_h proposal — "nathan.f77 (Nathan Broadbent)" <nathan.f77@...>

23 messages 2012/10/29

[#48552] [ruby-trunk - Bug #7242][Open] Bignum mathematical accuracy regression in r31695 — "mhall (Matthew Hall)" <mhall@...>

11 messages 2012/10/29

[ruby-core:48222] [ruby-trunk - Bug #7212] "stack level too deep" in Fiber much earlier in new versions of 1.9.3

From: "fiddur (Fredrik Liljegren)" <fredrik@...>
Date: 2012-10-25 04:56:24 UTC
List: ruby-core #48222
Issue #7212 has been updated by fiddur (Fredrik Liljegren).


Here's a little more debug-info (not sure if it's needed, but anyhow...)

I tried the patch from #3187, increasing the stack size of fibers.  I confirmed that the patch is working on a normal recursing method (without lambda block), increasing recursability 4 times by setting 16kb stacksize.  That did NOT affect this bug at all, still on 11 levels of recursion.

Not knowing how it's implemented, I tried lambda-blocks without closure-behaviour; i.e. without using external variables, using just:
  def recursive
    -> do
      p "Block"
      subblock = recursive
      subblock.call
    end
  end

...but it's exactly the same.


I also tried without the lambda notation, just sending in a block to recursive method.  That got me up to level 250 on both 1.9.3-p194 and 1.9.2-p320.  That's using:
  def recursive(level=0, &block)
    p "Level #{level}"
    recursive(level+1) { block.call }
  end
  Fiber.new { recursive {} }.resume


Well, hope it helps.

----------------------------------------
Bug #7212: "stack level too deep" in Fiber much earlier in new versions of 1.9.3
https://bugs.ruby-lang.org/issues/7212#change-31486

Author: fiddur (Fredrik Liljegren)
Status: Assigned
Priority: Normal
Assignee: ko1 (Koichi Sasada)
Category: 
Target version: 
ruby -v: ruby 1.9.3p286 (2012-10-12 revision 37165) [x86_64-linux] (and others, see description)


I was getting SystemStackError in my application on some servers and not others; on all with 1.9.3-p286 and on some with p194, and on none with 1.9.2-head.  I boiled it down to this:


def recursive(level = 0)
  -> do
    p "In block #{level}"
    if level < 1000
      subblock = recursive(level + 1)
      subblock.call
    end
  end
end

p "Doing recursive call in a fiber"
Fiber.new { recursive.call }.resume


On server A, 1.9.3-p194 and 1.9.3-p286 got up to 11 levels of recursion, while 1.9.2-head got up to 97 levels.
On server B (without 1.9.2), 1.9.3-p194 got 55 levels while p286 still got 11 levels.

I don't know what changes are made, but I think 11 levels are way on the low side for many applications.

(My original problem was with a thin-server running rack-fiber_pool with em-synchrony getting too deep in a regexp in Addressable::URI.)


-- 
http://bugs.ruby-lang.org/

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